— i— Home Computer Software
Instructions for use
You are in command of a submarine in the
Mediterranean. Your mission: toattackand
destroy the enemy convoys scattered over
the sea. To help you: a map, sonar,
periscope and torpedo. There's more to it
than that, of course. The enemy, for one
thing, can hit you with shells and depth
charges, so you also have a full instrument
panel to help you creep up undetected.
It may take a little time to master all the
available moves, but the fun and the thrills
are all the greater the more your skill
Below you will find full instructions for
loading and playing. Have a good game!
O A/lake sure the computer is turned OFF at the
power switch on the right-hand side of the
Q Connect your television to the computer and
switch the television ON.
© Take your Submarine Commander cartridge
and plug it into the back of the computer.
PROBLEMS If, after loading, your picture is
not automatically centred use the cursor
control keys to adjust it. If your picture
flickers, pressing SHIFT and F7 may improve
HOW TO PLAY
O After the title; the computer asks you to
choose a Skill Level 1 - 9. Press Fl to show the
numberyou want (see section 6 for details).
Press F3 when you are ready.
O The map in the centre of the screen shows
yourposition (flashing dot), and those of the
enemy convoys (black dots) . The object is to
track down the convoys and sink all the
ships. The enemy is composed of the
You score tonnage points for sinking ships,
with more points for tankers and less for
destroyers and patrol boats. But beware of
destroyers and patrol boats, which are
armed with shells and depth charges and
con cause you heavy damage. If they detect
you, they will attackyou. Tankers are also
armed with a single gun and can fire at you
as well, but will take evasive action to try to
© To attack your target, you have the following
Map Press M to establish yourposition
relative to land and convoys, at any time.
Sonar Press S for a picture of the sea
around you; ships within range show up as
blips on the screen.
Periscope Press Pwhen you are at a
depth of less than 30 feet, and you will get a
view of any ship within I mile range that is in
your line of sight. Use this mode to prepare
for a submarine attack.
Torpedoes When you are at a depth of
about 25 feet, press the triggerorthe
spacebar to fire a torpedo. Aim it ahead of
the target ship.
You move your submarine with a
combination of Joystick and Keyboard
controls. These work as follows:
TO SURFACE. Move Joystick towards you;
this pushes the submarine's nose up.
TO DIVE. Move Joystick away from you;
the nose goes down.
RUDDER CONTROL Move Joystick to left
and right. Use in conjunction with the
compass setting (see Instrument Panel).
TO SURFACE. Press X.
RUDDER CONTROL Press cursor up/down
to move left and press cursor left/right to
SPEED. Type a speed from 1 to 9. Type to stop.
BLOWBALLASTTANKS. Press B to surface
rapidly (but remember, this uses up valuable air).
CRASH DIVE. Press C. This takes control from
the Joystick and locks the submarine into a dive.
FIRETORPEDO. Press spacebar.
NEUTRALIZE BUOYANCY. Press N to regain
Joystick control after a crash dive (C) ortonks
being blown (B).
PAUSE. Press Yto halt the game. Move the
Joystick to restart.
ABORT. Press Q to abort the mission.
O Instrument Panel
The diagram below explains the position
and function of the various gauges on the
panel. At the beginning of each mission the
computer alllocates you quantities of
torpedoes, fuel, air and a battery charge
reading (see 6 for details) . You must be
careful not to run out of any of these. Your
speed is set at nil, and you have to type in a
number 1 -9. fn detail, the controls are as
a ATTITUDE. Move theJoystickto right and
left or use cursor keys to change course.
b COMPASS. The compass reading
determines the course you steer.
c CLOCK to time how long missions fasf.
e FUEL SUPPLY
f BATTERY CHARGE reading. To recharge,
you have to surface.
g SPEED IN KNOTS, i.e. nautical miles per
h SONAR SCREEN, produced by pressing S
(the other two modes are M = mop and P =
periscope). The sonar screen shows the
enemy ships as white 'blips'. Your position is
the white cross in the centre which remains
static. When an enemy ship is correctly lined
up the blip will appear directly above the
cross, at some point between itandthe
edge of the sonar screen.
i DEPTH GAUGE. This tells you your depth in
feet. Use your Joystick or press ZorXto dive
j HYDROPHONE CHART. This shows ships
as peaks. To move directly towards a ship,
line up a peak with the indicator in the centre
of the chart.
/This chart shows the DEPTH BELOWTHE
KEEL. Be careful you do not crash into the
m DAMAGE INDICATORS. These show
damage os a square ranging from empty
(no damage) to full (severe damage) to:
C= controls, I = instruments, H = hull,
E = engines. If your damage rating is not too
high, you may decide to canyon without
waiting for repairs, but beware unexpected
malfunctions. Your submarine is repaired
automatically. However repairs are carried
out more rapidly on the surface). If your hull
damage becomes severe, it may crack, with
a watery grove awaiting you!
nAIRSUPPLY. Can be renewed by surfacing.
When your supply is low it will flash.
O Skill Levels
The higher the Skill Level, the more
challenging the game becomes. You will, in
your encounters with the enemy, come up
against more attacking ships (destroyers
and patrol boats) and malfunctions are
more likely when you are damaged. You will
also have less fuel, charge and torpedoes
and there will be more convoys foryou to
attack and destroy before your mission is
complete (see the table below for details).
Added to this, for Skill Levels 7, 8 and 9, your
torpedoes will not always sink an enemy
ship they hit, but may only damage it.
Summary of Starting Positions
Skill «o. of
level fuml Charge Convoys Torpedoes
1 250 70 4 80
2 230 60 4 70
3 220 60 5 70
4 210 55 5 65
5 200 50 6 60
6 180 45 6 55
7 170 40 7 50
8 150 40 7 50
9 140 30 7 40
You need constantly to assess the pros and
cons of moving on the surface or
underwater. Running on fhe surface is
quicker, but if you get too close to an enemy
convoy on the surface, you will be seen and
attacked by the escorting warships. To warn
you, a bell sounds as you approach the
enemy's range of vision on the surface.
Your greatest advantage over the enemy is
your ability to travel underwater. However,
this does use up air and batteries, and you
can still be detected if you fire a torpedo or if
you use your sonar.
Asyour initial working tactics, try
approaching an enemy convoy on the
surface using the map mode (M) . As you
draw near, dive and locate the ships with
your sonar (S) and hydrophone chart. Then
come up to a depfri of about 25 feet and
press P for a view of the surface. Am your
submarine atthe target, and press the
trigger to release a torpedo, aiming ahead
of the ship. Hits are recorded on the
'tonnage sunk' chart (on the right) .
If you are under heavy attack from the
surface ships, and wish to lose them, dive
deep and cut your speed to O, and wait
until the attack is over.
O End of Game
The game ends when any of the following
(a) All enemy convoys are sunk
(b) All the oxygen is used
fcj All fuel and charge have been used
(d) There is severe damage to the hull
The game can also be terminated by
pressing Q. You will still receive a rating of
your abilities as a Submarine Commander.
At the end of each game you receive a
rating (score), with points awarded for
tonnage sunk and the ultimate for a
Submarine Commander, elimination of all
convoys. Points are deducted for fuel,
torpedoes and time used, etc.
Summary of Factors Affecting your Rating:
Points are awarded for:
(a) Tonnage sunk
(b) Bonus points for sinking all convoys
proportional to the Skill Level.
Points are deducted for.
(a) Fuel used
(b) Torpedoes used
(c) Charge used
(d) Damage incurred
(e) Time taken to complete the mission
(f) Being destroyed
Plug the cartridge into your computer.
Q Afterthe title, press Fl to choose o Skill Level.
Q Press F3 to begin gome. Mop on screen shows
yourposition and positions of enemy convoys.
O Using basic equipment of map, sonar,
periscope and torpedoes - plus instrument
panel -move your submarine with a
combination of Joystick and Keyboard to
track and sink ships in enemy convoys.
Q If the enemy detects you, it will attack with
shells and depth charges.
O Gome ends when all enemy convoys are
sunk; all oxygen is used; fuel and charge are
exhausted; or h ull is severely damaged.
Q At the end of game you receive a rating of
Important Key Controls
B-Blow Ballast (Surface) Spacebar- Fire Torpedo
C- Crash Dive P- Periscope
t , Z- Nose down
I Lett < — » Right
This is only intended as a basic guide. For
more detailed instructions see inside.
WARNING: ALL RIGHTS OF THE PRODUCER AND
THE OWNER OF THE WORK REPRODUCED RESERVED
UNAUTHORIZED COPYING. HIRING. LENDING. PUBLIC
PERFORMANCE. RADIO OR TV BROADCASTING OR
DIFFUSION OF THIS CARTRIDGE PROHIBITED.
Q THORN EMI Video Programmes Lid 1983